CranExtra™ includes concentrated extracts of the common cranberry (Vaccinium macrocarpon) and the upland cranberry (Arctostaphylos uva-ursi). Modern extraction and analytical techniques are used to produce the highest quality extracts.The common cranberry extract is standardized to contain 5 percent anthocyanidins and 30 percent organic acids, including quinic, malic, and citric acids. Researchers are exploring the connection between these organic acids and bladder function.

The upland cranberry extract (also known as bearberry) is standardized to contain 20 percent arbutin. In the body, arbutin breaks down into hydroquinone, a compound recognized for its role in urinary tract function.Unlike cranberry juice, which is typically sweetened, processed, and watered down, CranExtra capsules provide exactly the right level of key compounds.